<template>
  <div class="main">
    <a-form
      id="formLogin"
      ref="formLogin"
      class="user-layout-login"
      :form="form"
    >
      <a-tabs
        :active-key="customActiveKey"
        :tab-bar-style="{ textAlign: 'center', borderBottom: 'unset' }"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="账号密码登录">
          <a-alert
            v-if="isLoginError"
            type="error"
            :show-icon="true"
            style="margin-bottom: 24px;"
            :message="loginErrorMessage"
          />
          <a-form-item>
            <a-input
              v-decorator="[
                'username',
                {
                  rules: [{ required: true, message: '请输入帐户名或邮箱地址' }, { validator: handleUsernameOrEmail }],
                  validateTrigger: 'change'
                }
              ]"
              size="large"
              type="text"
              placeholder="账户: admin"
            >
              <template #prefix>
                <a-icon type="user" :style="{ color: 'rgba(0,0,0,.25)' }" />
              </template>
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input
              v-decorator="[
                'password',
                { rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur' }
              ]"
              size="large"
              type="password"
              autocomplete="false"
              placeholder="密码: a123456"
              @pressEnter="handleLogin"
            >
              <template #prefix>
                <a-icon type="lock" :style="{ color: 'rgba(0,0,0,.25)' }" />
              </template>
            </a-input>
          </a-form-item>
        </a-tab-pane>
        <a-tab-pane key="tab2" tab="手机号登录">
          <a-form-item>
            <a-input
              v-decorator="[
                'mobile',
                {
                  rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }],
                  validateTrigger: 'change'
                }
              ]"
              size="large"
              type="text"
              placeholder="手机号"
            >
              <template #prefix>
                <a-icon type="mobile" :style="{ color: 'rgba(0,0,0,.25)' }" />
              </template>
            </a-input>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input
                  v-decorator="[
                    'captcha',
                    { rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur' }
                  ]"
                  size="large"
                  type="text"
                  placeholder="验证码"
                >
                  <template #prefix>
                    <a-icon type="mail" :style="{ color: 'rgba(0,0,0,.25)' }" />
                  </template>
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="(!state.smsSendBtn && '获取验证码') || state.time + ' s'"
              />
            </a-col>
          </a-row>
        </a-tab-pane>
      </a-tabs>

      <a-form-item>
        <a-checkbox v-model="rememberMe">自动登录</a-checkbox>
        <router-link
          :to="{ name: 'recover', params: { user: 'aaa' } }"
          class="forge-password"
          style="float: right;"
        >忘记密码
        </router-link>
      </a-form-item>

      <a-form-item style="margin-top:24px">
        <a-button
          size="large"
          type="primary"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
          @click.prevent="handleLogin"
        >确定
        </a-button>
      </a-form-item>

      <Verify
        v-if="enableLoginCaptcha"
        ref="verify"
        :mode="'pop'"
        :captcha-type="'blockPuzzle'"
        :img-size="{ width: '330px', height: '155px' }"
        @success="captchaVerifySuccess"
      />

      <div class="user-login-other">
        <span>其他登录方式</span>
        <a>
          <a-icon class="item-icon" type="alipay" />
        </a>
        <a>
          <a-icon class="item-icon" type="taobao" />
        </a>
        <a>
          <a-icon class="item-icon" type="weibo" />
        </a>
        <router-link class="register" :to="{ name: 'register' }">注册账户</router-link>
      </div>
    </a-form>
  </div>
</template>

<script>
import { mapActions } from 'vuex'
import { timeFix } from '@/utils/util'
import { passEncrypt } from '@/utils/password'
import Verify from '@/components/Verifition/Verify'
import projectConfig from '@/config/projectConfig'

export default {
  components: { Verify },
  data() {
    return {
      customActiveKey: 'tab1',
      loginBtn: false,
      // login type: 0 email, 1 username, 2 telephone
      loginType: 0,
      isLoginError: false,
      loginErrorMessage: '',
      requiredTwoStepCaptcha: false,
      stepCaptchaVisible: false,
      form: this.$form.createForm(this),
      state: {
        time: 60,
        loginBtn: false,
        // login type: 0 email, 1 username, 2 telephone
        loginType: 0,
        smsSendBtn: false
      },
      enableLoginCaptcha: projectConfig.enableLoginCaptcha,
      // 记住我
      rememberMe: false
    }
  },
  created() {},
  methods: {
    ...mapActions(['Login', 'Logout', 'checkDictStatus', 'checkLov', 'delLovInfo']),
    // handler
    handleUsernameOrEmail(rule, value, callback) {
      const { state } = this
      const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
      if (regex.test(value)) {
        state.loginType = 0
      } else {
        state.loginType = 1
      }
      callback()
    },
    handleTabClick(key) {
      this.customActiveKey = key
      // this.form.resetFields()
    },
    /** 处理登录 */
    handleLogin(){
      this.enableLoginCaptcha? this.showCaptchaBox(): this.handleSubmit()
    },
    /** 滑块验证码弹窗 */
    showCaptchaBox() {
      const {
        form: { validateFields },
        customActiveKey
      } = this
      const validateFieldsKey = customActiveKey === 'tab1' ? ['username', 'password'] : ['mobile', 'captcha']
      validateFields(validateFieldsKey, { force: true }, (err, values) => {
        if (!err) {
          this.$refs.verify.show()
        }
      })
    },
    captchaVerifySuccess(verifyParams) {
      this.handleSubmit(verifyParams)
    },
    handleSubmit(verifyParams) {
      const {
        form: { validateFields },
        state,
        customActiveKey,
        Login
      } = this

      state.loginBtn = true

      const validateFieldsKey = customActiveKey === 'tab1' ? ['username', 'password'] : ['mobile', 'captcha']

      validateFields(validateFieldsKey, { force: true }, (err, values) => {
        if (!err) {
          const loginParams = { ...values }
          delete loginParams.username
          loginParams[!state.loginType ? 'email' : 'username'] = values.username
          loginParams.password = passEncrypt(loginParams.password)
          Login(Object.assign(loginParams, verifyParams))
            .then(res => this.loginSuccess(res))
            .catch(err => this.requestFailed(err))
            .finally(() => {
              state.loginBtn = false
            })
        } else {
          setTimeout(() => {
            state.loginBtn = false
          }, 600)
        }
      })
    },
    getCaptcha(e) {
      e.preventDefault()
      const {
        form: { validateFields },
        state
      } = this
    },
    stepCaptchaSuccess() {
      this.loginSuccess()
    },
    stepCaptchaCancel() {
      this.Logout().then(() => {
        this.loginBtn = false
        this.stepCaptchaVisible = false
      })
    },
    loginSuccess(res) {
      // 校验并删除过期字典数据
      this.checkDictStatus()
      // 校验lov数据
      this.checkLov().then(array => {
        for (let keyword of array) {
          this.delLovInfo(keyword)
        }
      })

      this.$router.push({ name: '/' }, () => {
        this.$notification.success({
          message: '欢迎',
          description: `${timeFix()}，欢迎回来`
        })
      })
      this.isLoginError = false
    },
    requestFailed(err) {
      this.isLoginError = true
      let errorMessage = ((err.response || {}).data || {}).message || '请求出现错误，请稍后再试'
      this.loginErrorMessage = errorMessage
      this.$notification['error']({
        message: '错误',
        description: errorMessage,
        duration: 4
      })
    }
  }
}
</script>

<style lang="less" scoped>
.user-layout-login {
  label {
    font-size: 14px;
  }

  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }

  .forge-password {
    font-size: 14px;
  }

  button.login-button {
    padding: 0 15px;
    font-size: 16px;
    height: 40px;
    width: 100%;
  }

  .user-login-other {
    text-align: left;
    margin-top: 24px;
    line-height: 22px;

    .item-icon {
      font-size: 24px;
      color: rgba(0, 0, 0, 0.2);
      margin-left: 16px;
      vertical-align: middle;
      cursor: pointer;
      transition: color 0.3s;

      &:hover {
        color: #1890ff;
      }
    }

    .register {
      float: right;
    }
  }
}
</style>
